This, in my honest opinion has to be onne of the most under-rated mahou shoujo series out there. Of course, this could be due to the fact that it is insanely obscure. The main plot is that Tiara ( pronounced Tiahla) is sent to earth to retrieve the source of magic in the Gaurdian World, the Throne of Yord. She has tracked down her former lover, Kagetsu this far and plans to take back the throne of yord. When she reaches earth, she enrolls in college where she encounters her old rival, Lena. She discovers that they have both been sent to retrieve the Throne of Yord. Tiara later has reasons to believe that Lena is working with Kagetsu and that the Throne is somehow connected with Kagetsu's sister, Sara. While most of the volence is bloodless, in the later episodes we see a fair amount of blood and the battles get fairly intense. It is written and directed by the same guy who directed "Outlaw Star" and the character designs are doe by one of CLAMP's premier artists. this is definately a "must see".